US "Junior" (Intermediate/Juvenile) Championships (Dec. 16-19, 2009)

Singles skaters qualified for the U.S. Junior Championships by finishing in the top four at one of nine regional championships held throughout the country in October,

Not quite accurate -- four is the minimum number of Intermediate/Juvenile level singles skaters advancing from each regional (unless there were fewer than 4 registered for an event), but the number can be higher and is based on a percentage rule that went into effect several years ago.